NEET PG High-Yield: Floods
Floods are the most common natural disaster globally. In public health terms, they are categorized by the immediate and long-term risks they pose to water, sanitation, and hygiene (WASH) infrastructure.
Public Health Consequences
| Phase | Key Health Risks |
|---|---|
| Immediate | Drowning, trauma, hypothermia, electrocution. |
| Short-term | Waterborne diseases (Cholera, Typhoid, Hepatitis A/E, Diarrheal diseases). |
| Long-term | Vector-borne disease outbreaks (Malaria, Dengue, Leptospirosis) due to stagnant water. |
Key Preventive Measures
- WASH Interventions: Ensuring supply of safe drinking water (chlorination) and proper excreta disposal to prevent outbreaks.
- Vector Control: Intensive fogging and drainage of stagnant water pools to break vector breeding cycles.
- Early Warning: Use of meteorological forecasting to evacuate vulnerable populations.
- Disease Surveillance: Setting up rapid reporting systems to detect disease spikes early.
High-Yield NEET PG Pearls:
- Leptospirosis: A characteristic outbreak risk in post-flood settings due to exposure to rodent urine in floodwaters.
- Water Quality: Boiling water or using halogens (chlorine) is the first line of defense against waterborne outbreaks.
- Disaster Strategy: The most crucial aspect is the *protection of water sources* and *sanitation infrastructure* to prevent the “fecal-oral” route of disease transmission.